Insane_DNS/libraries/asio-1.28.1/doc/asio/reference/buffer_sequence_begin.html

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<div class="titlepage"><div><div><h3 class="title">
<a name="asio.reference.buffer_sequence_begin"></a><a class="link" href="buffer_sequence_begin.html" title="buffer_sequence_begin">buffer_sequence_begin</a>
</h3></div></div></div>
<p>
<a class="indexterm" name="asio.indexterm.buffer_sequence_begin"></a>
</p>
<p>
The <code class="computeroutput"><span class="identifier">asio</span><span class="special">::</span><span class="identifier">buffer_sequence_begin</span></code> function returns
an iterator pointing to the first element in a buffer sequence.
</p>
<p>
Get an iterator to the first element in a buffer sequence.
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">MutableBuffer</span><span class="special">&gt;</span>
<span class="keyword">const</span> <span class="identifier">mutable_buffer</span> <span class="special">*</span> <a class="link" href="buffer_sequence_begin/overload1.html" title="buffer_sequence_begin (1 of 6 overloads)">buffer_sequence_begin</a><span class="special">(</span>
<span class="keyword">const</span> <span class="identifier">MutableBuffer</span> <span class="special">&amp;</span> <span class="identifier">b</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">constraint</span><span class="special">&lt;</span> <span class="identifier">is_convertible</span><span class="special">&lt;</span> <span class="keyword">const</span> <span class="identifier">MutableBuffer</span> <span class="special">*,</span> <span class="keyword">const</span> <span class="identifier">mutable_buffer</span> <span class="special">*</span> <span class="special">&gt;::</span><span class="identifier">value</span> <span class="special">&gt;::</span><span class="identifier">type</span> <span class="special">=</span> <span class="number">0</span><span class="special">);</span>
<span class="emphasis"><em>» <a class="link" href="buffer_sequence_begin/overload1.html" title="buffer_sequence_begin (1 of 6 overloads)">more...</a></em></span>
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">ConstBuffer</span><span class="special">&gt;</span>
<span class="keyword">const</span> <span class="identifier">const_buffer</span> <span class="special">*</span> <a class="link" href="buffer_sequence_begin/overload2.html" title="buffer_sequence_begin (2 of 6 overloads)">buffer_sequence_begin</a><span class="special">(</span>
<span class="keyword">const</span> <span class="identifier">ConstBuffer</span> <span class="special">&amp;</span> <span class="identifier">b</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">constraint</span><span class="special">&lt;</span> <span class="identifier">is_convertible</span><span class="special">&lt;</span> <span class="keyword">const</span> <span class="identifier">ConstBuffer</span> <span class="special">*,</span> <span class="keyword">const</span> <span class="identifier">const_buffer</span> <span class="special">*</span> <span class="special">&gt;::</span><span class="identifier">value</span> <span class="special">&gt;::</span><span class="identifier">type</span> <span class="special">=</span> <span class="number">0</span><span class="special">);</span>
<span class="emphasis"><em>» <a class="link" href="buffer_sequence_begin/overload2.html" title="buffer_sequence_begin (2 of 6 overloads)">more...</a></em></span>
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">C</span><span class="special">&gt;</span>
<span class="keyword">auto</span> <a class="link" href="buffer_sequence_begin/overload3.html" title="buffer_sequence_begin (3 of 6 overloads)">buffer_sequence_begin</a><span class="special">(</span>
<span class="identifier">C</span> <span class="special">&amp;</span> <span class="identifier">c</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">constraint</span><span class="special">&lt;</span> <span class="special">!</span><span class="identifier">is_convertible</span><span class="special">&lt;</span> <span class="keyword">const</span> <span class="identifier">C</span> <span class="special">*,</span> <span class="keyword">const</span> <span class="identifier">mutable_buffer</span> <span class="special">*</span> <span class="special">&gt;::</span><span class="identifier">value</span> <span class="special">&amp;&amp;!</span><span class="identifier">is_convertible</span><span class="special">&lt;</span> <span class="keyword">const</span> <span class="identifier">C</span> <span class="special">*,</span> <span class="keyword">const</span> <span class="identifier">const_buffer</span> <span class="special">*</span> <span class="special">&gt;::</span><span class="identifier">value</span> <span class="special">&gt;::</span><span class="identifier">type</span> <span class="special">=</span> <span class="number">0</span><span class="special">);</span>
<span class="emphasis"><em>» <a class="link" href="buffer_sequence_begin/overload3.html" title="buffer_sequence_begin (3 of 6 overloads)">more...</a></em></span>
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">C</span><span class="special">&gt;</span>
<span class="keyword">auto</span> <a class="link" href="buffer_sequence_begin/overload4.html" title="buffer_sequence_begin (4 of 6 overloads)">buffer_sequence_begin</a><span class="special">(</span>
<span class="keyword">const</span> <span class="identifier">C</span> <span class="special">&amp;</span> <span class="identifier">c</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">constraint</span><span class="special">&lt;</span> <span class="special">!</span><span class="identifier">is_convertible</span><span class="special">&lt;</span> <span class="keyword">const</span> <span class="identifier">C</span> <span class="special">*,</span> <span class="keyword">const</span> <span class="identifier">mutable_buffer</span> <span class="special">*</span> <span class="special">&gt;::</span><span class="identifier">value</span> <span class="special">&amp;&amp;!</span><span class="identifier">is_convertible</span><span class="special">&lt;</span> <span class="keyword">const</span> <span class="identifier">C</span> <span class="special">*,</span> <span class="keyword">const</span> <span class="identifier">const_buffer</span> <span class="special">*</span> <span class="special">&gt;::</span><span class="identifier">value</span> <span class="special">&gt;::</span><span class="identifier">type</span> <span class="special">=</span> <span class="number">0</span><span class="special">);</span>
<span class="emphasis"><em>» <a class="link" href="buffer_sequence_begin/overload4.html" title="buffer_sequence_begin (4 of 6 overloads)">more...</a></em></span>
</pre>
<p>
Get an iterator to the first element in a buffer sequence.
</p>
<pre class="programlisting"><span class="keyword">const</span> <span class="identifier">mutable_buffer</span> <span class="special">*</span> <a class="link" href="buffer_sequence_begin/overload5.html" title="buffer_sequence_begin (5 of 6 overloads)">buffer_sequence_begin</a><span class="special">(</span>
<span class="keyword">const</span> <span class="identifier">mutable_registered_buffer</span> <span class="special">&amp;</span> <span class="identifier">b</span><span class="special">);</span>
<span class="emphasis"><em>» <a class="link" href="buffer_sequence_begin/overload5.html" title="buffer_sequence_begin (5 of 6 overloads)">more...</a></em></span>
<span class="keyword">const</span> <span class="identifier">const_buffer</span> <span class="special">*</span> <a class="link" href="buffer_sequence_begin/overload6.html" title="buffer_sequence_begin (6 of 6 overloads)">buffer_sequence_begin</a><span class="special">(</span>
<span class="keyword">const</span> <span class="identifier">const_registered_buffer</span> <span class="special">&amp;</span> <span class="identifier">b</span><span class="special">);</span>
<span class="emphasis"><em>» <a class="link" href="buffer_sequence_begin/overload6.html" title="buffer_sequence_begin (6 of 6 overloads)">more...</a></em></span>
</pre>
<h5>
<a name="asio.reference.buffer_sequence_begin.h0"></a>
<span><a name="asio.reference.buffer_sequence_begin.requirements"></a></span><a class="link" href="buffer_sequence_begin.html#asio.reference.buffer_sequence_begin.requirements">Requirements</a>
</h5>
<p>
<span class="emphasis"><em>Header: </em></span><code class="literal">asio/buffer.hpp</code>
</p>
<p>
<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
</p>
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<div class="copyright-footer">Copyright © 2003-2023 Christopher M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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